That’s why I suggested you stick to Bash, until you get more comfortable with it. Configuring Zsh is fun, but it’s not the simplest of task.
You need a .zshrc file. A good place to start is to look up what other people have posted online.
Also, there is official zsh documentation: http://zsh.sourceforge.net/Doc/
and the official user’s guide: http://zsh.sourceforge.net/Guide/
I recommend starting by reading the guide. It is very well written, especially for new users. Unfortunately, it is a bit outdated, since it was written for version 4.0, and the current version running on Arch-based distros is 5.8. But most of it should still be relevant.
Customising zsh is a rabbit hole. There is almost no limit to how crazy you can get with it, and you’ll discover new things about it for the rest of your life. For example: